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Finding the Fourth Proportional to 88,376.80, 132,370.80 and 76,712.80

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Solution

The fourth proportional to 88,376.80, 132,370.80 and 76,712.80 is: 114,900.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,376.80 : 132,370.80 = 76,712.80 : x
  2. Step 2: Convert to fraction form
    88,376.80/132,370.80 = 76,712.80/x
  3. Step 3: Cross multiply
    88,376.80x = 132,370.80 × 76,712.80
  4. Step 4: Simplify right side
    88,376.80x = 10,154,534,706.24
  5. Step 5: Solve for x
    x = 10,154,534,706.24/88,376.80
  6. Step 6: Final answer
    x = 114,900.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.